Take the 2-minute tour ×
Ask Different is a question and answer site for power users of Apple hardware and software. It's 100% free, no registration required.

I put some alias commands in my .bashrc file, so that they might be loaded everytime I open a new Terminal window. Yet this doesn't happen.

I have to select run script: in the Terminal>Preferences>"MyDefaultTheme">Shell prefpane and add: source .bashrc && clear for it to work...

This seems odd since many tutorials only say you just have to add to the .bashrc file and all is good.

Note that I don't run in bash when using the terminal, I like the other (default) one (don't know what it is) better, because it show me where I am all the time eg:

>>d54c6b47b:~ romeo$

in stead of:

>>bash$

In bash all is loaded as should be.

So my question is, why didn't my .bashrc file load automatically and did I have to add the option to call it everytime?

Also some tutorial told me to do something like:

$alias la=’ls -la’ >> ~/.bashrc

which should write the alias to my .bashrc, this doesn't work either...

Note that I'm a UNIX novice, so be gentle.

share|improve this question
    
I think this is very close to apple.stackexchange.com/questions/7984/…. –  boehj Apr 27 '11 at 21:13
    
@boehj well it mentions "not loading .bashrc" but that's about it. –  koiyu Apr 27 '11 at 23:58
    
OK, sorry if I confused things here. –  boehj Apr 28 '11 at 1:20
    
You probably like csh (or another variant) better. But you should know that the >>bash$ can be changed :) –  vol7ron Jun 6 '12 at 1:13

9 Answers 9

up vote 26 down vote accepted

Just put that in your .profile file from your home dir and it should work the next time you start a new shell or after you run "source ~/.profile"

This link clearly states the order in which the startup files are read and loaded by the shell: http://hayne.net/MacDev/Notes/unixFAQ.html#shellStartup

share|improve this answer
    
accepted this one because it is has a solution (and it was the first of two near identical posts). –  romeovs Apr 28 '11 at 5:15
    
this worked for me, thanks –  marcgg Jun 6 '11 at 9:12

Been there, done that. What I came aware of, OS X doesn't read .bashrc file on bash start. Instead, it reads the following files (in the following order):

  1. /etc/profile
  2. ~/.bash_profile
  3. ~/.bash_login
  4. ~/.profile

See also Chris Johnsen's informative and useful comment:

By default, Terminal starts the shell via /usr/bin/login, which makes the shell a login shell. On every platform (not just Mac OS X) bash does not use .bashrc for login shells (only /etc/profile and the first of .bash_profile, .bash_login, .profile that exists and is readable). This is why "put source ~/.bashrc in your .bash_profile" is standard advice

I usually just put the things that I'd normally put in ~/.bashrc to ~/.profile — has worked so far like a charm.

share|improve this answer
13  
By default, Terminal starts the shell via /usr/bin/login, which makes the shell a login shell. On every platform (not just Mac OS X) bash does not use .bashrc for login shells (only /etc/profile and the first of .bash_profile, .bash_login, .profile that exists and is readable). This is why “put source ~/.bashrc in your .bash_profile” is standard advice. –  Chris Johnsen Apr 28 '11 at 4:21
3  
Re "I usually just put the things that I'd normally put in ~/.bashrc to ~/.profile": For maximum compatibility I recommend you follow Chris Johnsen's advice and place anything that you want to apply to non-login shells in ~/.bashrc and add "source ~/.bashrc" to your ~/.bash_profile to run it for login shells. Otherwise, it won't work for sub-shells, or if Terminal changes to create non-login shells, or if you ever use xterm or another terminal program that create non-login shells by default, or if you might want to use the same setup on another OS. –  Chris Page Aug 14 '11 at 1:35
2  
On a related note, on Mac OS X you should consider having ~/.bashrc run /etc/bashrc to pick up global behaviors. In particular, there's code in /etc/bashrc to update the working directory at each prompt, which is what enables Terminal to display the proxy icon, create new terminals at the same directory, and restore the working directory for Resume and Window Groups. –  Chris Page Aug 14 '11 at 1:38
    
For me, sourcing .bashrc from .bash_profile didn't work. But sourcing .bashrc / .bash_profile from .profile worked. –  Rajkumar Masaniayan Jan 9 '13 at 8:02
    
Upvote for "This is why "put source ~/.bashrc in your .bash_profile" is standard advice" –  JD. Mar 1 '13 at 16:07

I put everything into ~/.bashrc and just source ~/.bashrc in .profile.

This allows screen and xterm (and i guess tmux) sessions to inherit my environment as non-login sessions only run .bashrc, whereas login sessions (eg terminal or iTerm) only run .profile.

share|improve this answer
    
This is my approach. This way I can maintain a .bashrc that works on both systems... and I can put any mac specific stuff or stuff like aliases that are only for work (where I use the mac the most) in my .bash_profile file. –  Michael Durrant May 27 at 10:28

Putting...

[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm" # Load RVM function

...in ~/.bashrc, and then source ~/.bashrc into my ~/.bash_profile didn't work for the Terminal program that comes installed.

But then I went to the menu drop-down Edit > Profile Preferences, Title and Command tab, and selected Run command as a login shell from the command section of that page.

After doing so, starting a new terminal shows the desired result when I type

 type rvm|head -1

i.e. "rvm is a function". It did not do that until I made this change, and it's the only change I made after the .bash_profile and .bashrc changes described in other answers here.

share|improve this answer

I found that after installing rvm (auto-installer, no manual edits) it had created a ~/.bash_login file for itself, where I previously never had one.

However, this mean that my ~/.profile setups and aliases no longer got loaded! Lots of shortcuts disappeared. I thought they ran sequentially, not exclusively :-/

I added

. ~/.profile 

to ~/.bash_login to chain things as I expected.

share|improve this answer
    
+1, this is situation I had. I found that either .bash_login or .bash_profile will prevent .profile from being executed... No idea why bash feels the need to have so many conflicting startup files. –  RichVel Mar 13 '13 at 21:21

First of all let me tell you that ~/.bashrc is the file which is executed every time a second shell is called up (when running a shell script, for instance), and ~/.profile is called on every login.

So I recommend you to write . ~/.bashrc command in your ~/.profile file, and this command will execute the bashrc file every time you login.

share|improve this answer
    
when .profile get executed on login it automatically execute the .bashrc file. –  arun rana Sep 24 '12 at 12:53
    
so .bashrc gets executed indirectly at every login –  arun rana Sep 24 '12 at 12:54
    
bashrc is for non-login shells. bash_profile/bash_login/profile/whatever else is for login shells. This is a source of a huge amount of contention, involving what is and isn't a login shell (a screen/tmux session for example, a terminal within a desktop environment, etc.). It's not necessarily the "second shell". It's a matter of shell entry. –  Jason Salaz Jun 3 '13 at 20:14
    
If you ever use a shell that isn't Bash, doing what you describe might cause you problems. .profile applies to all shells and .bashrc might contain language that some other shells don't understand. Instead of .profile, put what you wrote in .bash_profile. (Also, make the first thing .bash_profile does be "source .profile".) –  Terry N Mar 19 at 16:44

Sourcing .profile in .bash_profile did it for me

echo 'source ~/.profile' >> ~/.bash_profile
share|improve this answer
    
Sourcing .profile in .bash_profile is a great thing to do, but that alone wouldn't cause .bashrc to be run by login shells. Your .profile must've already sourced .bashrc, which could cause problems if you ever use a shell other than bash. Most Mac users never will, but if you do for some reason, remember this. :) –  Terry N Mar 19 at 16:56

To keep with the OSX style login ".profile" and support the normal bash behavior ".bashrc" you can use a .bashrc file if you switch between regular nix and OSX by providing a symbolic link to your ".bashrc" file called ".bash_profile". Just make sure this file doesn't exist already before trying this, but this is how I do it.

ln -s .bashrc .bash_profile
share|improve this answer
    
By doing this linking between 2 differents shell initialisation script you are loosing a necessary separation of function. One day or another you will need an initialisation at the session level (.bash_profile) and an initialisation different at each shell level (.bashrc). –  daniel Azuelos Sep 24 at 7:03

There are two scenarios:

  1. You are using Linux
  2. You are using Mac Os X

For both you want to source ~/.bashrc in your profile that gets loaded, or sourced, when your shell for your terminal starts.


LINUX

In Linux, ~/.profile is automatically source in your shell when it starts. So, if you go to your terminal and type cd ~; ls -A, you will see all of your files and directories in your home directory (/home/usrname/). You should see a file called .profile. This is the file that is automatically "sourced" when you start the terminal.

If you want to add aliases and functions to ~/.bashrc (which is what I do), then you should (inside of ~/.profile add an if statement that checks if `~/.bashrc is a non-empty file and then source it.

To check if your ~/.profile already does this enter nano ~/.profile. This will open it up in a text editor (you can use gedit if you know you have it or even vim if you know how to use it). You may get an empty text file (you shouldn't), but if you do simply proceed. If you do not see a line anywhere that says source ~/.bashrc, then enter the following lines somewhere (put it in a reasonable place like at the end or beginning and not in the middle of an if statement):

if [ -s ~/.bashrc ]; then
    source ~/.bashrc;
fi

This checks if ~/.bashrc is a non-empty file (with if [ -s ~/.bashrc ]), and if it is such, it sources it. Pretty simple. Now, you can add any valid alias, function, variable, etc to ~/.bashrc.


MAC OS X

By default, Max Os X sources ~/.bash_profile. To be able to add things to~/.bashrc(which is, again, what I do in Os X, as well), then you follow the same procedure as linux. In the terminal entercd ~; nano .bash_profile. Check for a line that sayssource ~/.bashrcand if it's not there add the if statement above (if [ -s ~/.bashrc ]; then source ~/.bashrc; fi`).


NOTES

When writing an if statement, be sure to leave spaces between basically everything (for example if [ -s ~/.bashrc]; then echo "found"; fi does not work because there is no space beween ~/.bashrc and ] - the interpreter will think this is one word).

If you want to figure out how to check for stuff in an if statement better, go to terminal and enter man \[; this essentially gives you the run-down of an if statement. For example, if [ -f /path/to/file ]; then echo "it's a file"; else echo "not a file"; fi checks if /path/to/file is a file and if it is prints to stdout accordingly. I always reference this as well for easier-on-the-eyes and quick reference: 7.2. File test operators.

I hope this helps. I remember how confused I was when I started all of this stuff (which wasn't too long ago); so, good luck with your future UNIX endeavours!

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.